US7337974B2 - Inductive coupling exchange in a portable intelligent object with central and peripheral circuits - Google Patents
Inductive coupling exchange in a portable intelligent object with central and peripheral circuits Download PDFInfo
- Publication number
- US7337974B2 US7337974B2 US10/500,849 US50084904A US7337974B2 US 7337974 B2 US7337974 B2 US 7337974B2 US 50084904 A US50084904 A US 50084904A US 7337974 B2 US7337974 B2 US 7337974B2
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- US
- United States
- Prior art keywords
- circuit
- station
- data
- central
- peripheral circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime, expires
Links
- 230000002093 peripheral effect Effects 0.000 title claims abstract description 60
- 230000008878 coupling Effects 0.000 title claims abstract description 15
- 238000010168 coupling process Methods 0.000 title claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 15
- 230000001939 inductive effect Effects 0.000 title claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 35
- 238000012545 processing Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000015654 memory Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims 7
- 230000005672 electromagnetic field Effects 0.000 description 8
- 239000004020 conductor Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/072—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising a plurality of integrated circuit chips
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07766—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
- G06K19/07767—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement the first and second communication means being two different antennas types, e.g. dipole and coil type, or two antennas of the same kind but operating at different frequencies
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
Definitions
- the field of the invention is that of intelligent portable objects such as a chip card or transponder, and more particularly data exchanges by inductive coupling within such an object.
- the document EP0057602 describes an intelligent portable object for the payment of services.
- This device comprises an integrated circuit chip, integrated, via a bus grouping together conductive wires, with other components of the device, including an antenna, a display screen and an entry keyboard.
- This document therefore provides only the internal components communicating exclusively via a contactless connection with an external station.
- the document U.S. Pat. No. 6,073,855B describes an apparatus for the reception, maintenance and transmission of information and data.
- the apparatus comprising a main computer and at least two cards to the PCMCIA format, placed in parallel in a dedicated compartment.
- An interface affords communication between the PCMCIA cards.
- the communication interface can divert the data, which must normally pass via a standard bus which physically connects the PCMCIA cards to the main computer, in order to accelerate the transmission of information and data, for example by capacitive, optical or inductive coupling. Since it is a case of accelerating the transfer rate, this document does not make provision for replacing the physical connection with a contactless link.
- the document U.S. Pat. No. 5,537,126 describes a system for displaying information at a place of sale, by means of electronic display labels.
- the labels are in electromagnetic coupling with a conductor.
- a control circuit is used for producing an information signal which contains the address of the label and data.
- a modulator circuit converts an alternating current into an information signal and applies it to the conductor for transmission thereof to the display labels.
- Each of the labels is equipped with an electromagnetic coil coupled to the conductor.
- Each of the display labels is equipped with a manual initialisation switch.
- a microprocessor is also provided in the label as well as an internal memory.
- the document DE4138131 describes a chip card with microprocessor, display screen and integrated memory supplied by a solar sensor. Communication between the card and an external unit in read/write mode is contactless, for example by optical, capacitive or inductive transmission.
- the microprocessor, the memory, the display and the solar energy sensor are physically connected to the inside of the card by conductors.
- the document DE19604206 describes an intelligent portable object for the transmission of secure data.
- This intelligent portable object has a card body made from plastics material, to the format of a credit card.
- a keypad is housed, with the function keys.
- galvanic conductors connect rows and columns together in a matrix to a control unit.
- the intelligent portable object is also equipped with an antenna, embedded in the body.
- Contactless intelligent portable objects comprising a contactless communication interface able to send or receive data by inductive coupling with a station are therefore known.
- the contactless communication interface comprises an antenna coil connected to a capacitor, an integrated circuit such as a chip or another component.
- Contactless intelligent portable objects have a peripheral circuit such as a display and a chip connected to this peripheral circuit.
- the chip performs identification and/or authentication functionalities, referred to as “central” or “principal” with respect to the so-called “peripheral” display function of the display.
- peripherals for example the displays, have the drawback of having characteristics in terms of operating voltage and current which are not easy to make compatible with those of the chips.
- implementing connections between the chip and the peripheral is detrimental to the production cost of the intelligent portable objects.
- the invention aims to remedy these drawbacks, and is defined in the claims.
- the data exchanged between the peripheral circuit and the central circuit all passes via the station, which makes it possible to omit the connection between the peripheral circuit and the central circuit.
- the result is a simple and inexpensive fitting of the peripheral circuit.
- FIG. 1 is a schematic view of a transponder with two contactless communication interfaces according to the invention
- FIG. 2 illustrates schematically an intelligent portable object according to the invention, able to communicate without contact and equipped with a display
- FIG. 3 illustrates schematically a contactless intelligent portable object equipped with an integrated circuit forming a chip, a contactless circuit forming a display and a contactless integrated circuit forming a keypad according to the invention.
- an intelligent portable object 2 comprises a contactless communication interface 4 which comprises an antenna coil L 1 connected to an integrated circuit 6 referred to as a chip.
- This chip 6 performs the identification and/or authentication functionalities, referred to as “central” or “principal”.
- Intelligent portable object means here any apparatus or device able to effect detection or communication by means of an electromagnetic field. It is a case for example of chip cards, electronic labels or the like.
- This intelligent portable object 2 comprises another contactless communication interface 8 which comprises another antenna coil L 2 .
- Pins 10 and 12 of the antenna coil L 2 are connected to an integrated circuit 14 fulfilling a peripheral function.
- Peripheral 14 is therefore spoken of.
- This peripheral 14 is in the figures a display peripheral.
- the peripheral 14 is a keypad, a sensor, for example biometric, a light-emitting diode or the like.
- peripheral 14 performs so-called “peripheral” functionalities, here of display, compared with the identification and/or authentication functionalities, referred to as “central” or “principal”, of the chip 6 .
- the intelligent portable object 2 is able to communicate without contact or at a distance with a reader or station 20 comprising an antenna 22 .
- the station 20 is here a sending/receiving device provided with an antenna which creates an electromagnetic field at a given frequency.
- the antenna 22 of the device forming a station 20 makes it possible to modulate the electromagnetic field and to measure variations in this field.
- the antenna 22 of the station 20 in general comprises one or more coils.
- the inductive coupling between the object 2 and the station 20 is achieved when this object 2 is at a given distance, referred to as the “proximity” distance, from the station 20 . According to the objects 2 and stations 20 , this distance is from around a few millimetres to a few metres.
- the circuit 14 comprises here a display area 16 .
- This circuit 14 is here able to be supplied by the current induced in the coil L 2 when the coil L 2 is in inductive coupling with the antenna 22 of the station 20 .
- the circuit 14 is also able to extract from this induced current information intended to be displayed.
- the induced current comes from an electromagnetic field emitted by the station 20 , for example a badge reader or a chip card reader.
- the intelligent portable object 2 is a chip card to the ISO 7816 format, contactless or mixed, that is to say with an interface with contacts and an interface without contact.
- the mixed card cooperates with a reader (not shown) having a communication interface with contact as well as a communication interface without contact.
- the high voltages at the terminals of the antenna L 2 are obtained throughout the operating spectrum of the object 2 .
- the invention is able to integrate such peripherals 14 .
- the resonant circuits formed by the first communication interface 4 and the second communication interface 8 are chosen so that they are tuned to frequencies close to one another, and so that the frequency resulting from the coupling of the two coils L 1 and L 2 is adapted to the frequency required by the station 20 .
- the peripheral 14 is, according to the examples, a contactless display or a standard commercially available display provided with a control device (driver) with a protocol for the exchange of data by means of a serial link. In the latter case, a matching circuit is used for producing, from the current induced in the coil L 2 , all the signals necessary for the functioning of this peripheral 14 .
- the peripheral 14 fulfils the function of entry keypad.
- This peripheral 14 forming a keypad is also of the contactless type.
- This peripheral 14 is able to dialogue with the contactless reader via an electromagnetic field in the same way as the chip 6 or display mentioned above, and according to the same principle, namely a modulation of the electromagnetic field.
- Such a peripheral 14 forming a contactless keypad makes it possible in particular to omit keypads on the terminals such as the station 20 .
- this peripheral 14 helps to reduce the costs of the system and in particular to increase the security of the stations 20 ; this is because the keypad of a station 20 which has a direct interface with the outside world is a favoured entry point for external attacks.
- the contactless peripheral 14 being provided with electric current, that is to say “self-supplied” by the induced current, the entry of a secret code is more difficult to spy on that that which is performed on a station keypad 20 .
- the intelligent portable object 2 comprises several peripherals, such as a contactless keypad and a display.
- a contactless keypad and a display such as a contactless keypad and a display.
- two contactless peripheral circuits are integrated in the intelligent portable object 2 , one forming a display 14 , the other forming a keypad 30 .
- This circuit forming a contactless keypad 30 comprises several keys 32 .
- This keypad 30 has a resonant circuit able to send to the reader or station 20 information corresponding to the key 32 pressed by the user.
- a contactless light-emitting diode (not shown) associated with another resonant circuit makes it possible, by means of a display, to confirm that all the contactless peripheral circuits in the intelligent portable object 2 are supplied by the electromagnetic field.
- the station 20 exchanges data with the integrated circuit forming a chip 6 by means of an amplitude modulation, according to a protocol in accordance with a current standard, for example ISO 14443.
- the exchanges with the circuits forming a contactless keypad 30 , contactless display 14 and contactless light-emitting diode take place using an amplitude modulation having characteristics different from those of the modulation between the chip 6 and the reader 20 so as to allow the selection by the reader of the contactless peripheral element in question.
- this display 14 requires solely the reception of data.
- a low-frequency pulse generator for example of a few kHz, and the number of these pulses corresponds to the keycode pressed.
- the reader 20 then detects these pulses, which modulate the antenna coil 22 of the reader 20 .
- the reader 20 deduces therefrom the pulses thus triggered.
- selection mechanisms by anti-collision can be used, such as anti-collision systems by the selection of series numbers.
- the chip 6 which, in order to display information, sends it first of all to the station 20 , which is then responsible for sending it to the display 14 .
- the advantage of such a protocol is to provide the intelligent portable objects with at least one contactless peripheral element which requires no cabled connection between the central processing unit of the intelligent portable object and the contactless peripheral element.
Abstract
Description
Claims (18)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/042,089 US8508334B2 (en) | 2002-01-16 | 2008-03-04 | Inductive coupling exchange in a portable intelligent object with central and peripheral circuits |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0200504 | 2002-01-16 | ||
FR0200504A FR2834857B1 (en) | 2002-01-16 | 2002-01-16 | TRANSPONDER EQUIPPED WITH A CENTRAL CIRCUIT AND AT LEAST ONE PERIPHERAL CIRCUIT AND METHOD FOR EXCHANGING DATA BETWEEN SAID CIRCUITS VIA A STATION IN INDUCTIVE COUPLING WITH THE TRANSPONDER |
PCT/FR2003/000084 WO2003060820A1 (en) | 2002-01-16 | 2003-01-13 | Inductive coupling exchange in a portable intelligent object with central and peripheral circuits |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/042,089 Division US8508334B2 (en) | 2002-01-16 | 2008-03-04 | Inductive coupling exchange in a portable intelligent object with central and peripheral circuits |
Publications (2)
Publication Number | Publication Date |
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US20050068155A1 US20050068155A1 (en) | 2005-03-31 |
US7337974B2 true US7337974B2 (en) | 2008-03-04 |
Family
ID=8871314
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Application Number | Title | Priority Date | Filing Date |
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US10/500,849 Expired - Lifetime US7337974B2 (en) | 2002-01-16 | 2003-01-13 | Inductive coupling exchange in a portable intelligent object with central and peripheral circuits |
US12/042,089 Expired - Fee Related US8508334B2 (en) | 2002-01-16 | 2008-03-04 | Inductive coupling exchange in a portable intelligent object with central and peripheral circuits |
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Application Number | Title | Priority Date | Filing Date |
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US12/042,089 Expired - Fee Related US8508334B2 (en) | 2002-01-16 | 2008-03-04 | Inductive coupling exchange in a portable intelligent object with central and peripheral circuits |
Country Status (8)
Country | Link |
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US (2) | US7337974B2 (en) |
EP (1) | EP1483733B1 (en) |
JP (1) | JP2005515563A (en) |
CN (2) | CN100483456C (en) |
AU (1) | AU2003215700A1 (en) |
ES (1) | ES2599323T3 (en) |
FR (1) | FR2834857B1 (en) |
WO (1) | WO2003060820A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20070128940A1 (en) * | 2003-12-08 | 2007-06-07 | Cochlear Limited | Cochlear implant assembly |
US20100326723A1 (en) * | 2007-07-17 | 2010-12-30 | Cochlear Limited | Electrically insulative structure having holes for feedthroughs |
US11058871B2 (en) | 2003-12-08 | 2021-07-13 | Cochlear Limited | Manufacturing an electrode array for a stimulating medical device |
Families Citing this family (12)
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US7545272B2 (en) | 2005-02-08 | 2009-06-09 | Therasense, Inc. | RF tag on test strips, test strip vials and boxes |
US20070176754A1 (en) * | 2006-01-16 | 2007-08-02 | Atmel Germany Gmbh | Method for operating a transponder, and a transponder device |
AT9656U1 (en) * | 2007-02-19 | 2008-01-15 | Sitech Sicherheitstechnik Gmbh | ELECTRONIC KEY |
FR2914800B1 (en) * | 2007-04-04 | 2010-09-17 | Jacek Kowalski | NFC MODULE, IN PARTICULAR FOR MOBILE TELEPHONE |
US8149108B2 (en) * | 2007-11-14 | 2012-04-03 | Stryker Corporation | System and method for automatically powering on and synchronizing a wireless remote console to a central control unit so as to allow remote control of a medical device |
EP2068274A1 (en) | 2007-12-03 | 2009-06-10 | Gemplus | System with double integrated circuit and use of the system to implement a remote application |
AU2009219346B2 (en) * | 2008-02-25 | 2012-04-19 | Tivo Solutions Inc. | Stackable communications system |
FR2938096B1 (en) * | 2008-11-03 | 2010-11-26 | Oberthur Technologies | ELECTRONIC DEVICE ALLOWING NEAR - FIELD CONTACT - FREE COMMUNICATIONS. |
JP2010257159A (en) * | 2009-04-23 | 2010-11-11 | Dainippon Printing Co Ltd | Non-contact ic card with display |
US8805193B2 (en) * | 2011-02-17 | 2014-08-12 | Avery Dennison Corporation | Remotely powered optical output labels |
US9865105B2 (en) | 2013-06-21 | 2018-01-09 | X-Card Holdings, Llc | Electronic credential signal activation systems and methods |
CN104504420A (en) * | 2014-12-19 | 2015-04-08 | 桂林电子科技大学 | Passive transponder based on magnetic coupling induction |
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EP0057602A2 (en) | 1981-01-30 | 1982-08-11 | Chalmers, David Arthur | Adaptable value token |
EP0262036A1 (en) | 1986-09-22 | 1988-03-30 | Schlumberger Industries | Data processing system with memory cards having a plurality of electronic modules |
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DE4138131A1 (en) | 1991-10-19 | 1993-04-22 | Provera Ges Fuer Projektierung | Non-contact chip card with integrated microprocessor - has read/write facility provided by optical capacitive or inductive coupling to card, and display powered by solar energy |
US5206495A (en) * | 1989-10-24 | 1993-04-27 | Angewandte Digital Elektronik Gmbh | Chip card |
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-
2002
- 2002-01-16 FR FR0200504A patent/FR2834857B1/en not_active Expired - Fee Related
-
2003
- 2003-01-13 EP EP03729504.5A patent/EP1483733B1/en not_active Expired - Lifetime
- 2003-01-13 CN CNB038023040A patent/CN100483456C/en not_active Expired - Fee Related
- 2003-01-13 ES ES03729504.5T patent/ES2599323T3/en not_active Expired - Lifetime
- 2003-01-13 WO PCT/FR2003/000084 patent/WO2003060820A1/en active Application Filing
- 2003-01-13 US US10/500,849 patent/US7337974B2/en not_active Expired - Lifetime
- 2003-01-13 JP JP2003560844A patent/JP2005515563A/en active Pending
- 2003-01-13 CN CN2009101266209A patent/CN101561861B/en not_active Expired - Fee Related
- 2003-01-13 AU AU2003215700A patent/AU2003215700A1/en not_active Abandoned
-
2008
- 2008-03-04 US US12/042,089 patent/US8508334B2/en not_active Expired - Fee Related
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EP0057602A2 (en) | 1981-01-30 | 1982-08-11 | Chalmers, David Arthur | Adaptable value token |
US4874934A (en) | 1986-06-28 | 1989-10-17 | Kabushiki Kaisha Toshiba | IC card which displays embossed information to prevent counterfeiting |
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US20070128940A1 (en) * | 2003-12-08 | 2007-06-07 | Cochlear Limited | Cochlear implant assembly |
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US8819919B2 (en) | 2003-12-08 | 2014-09-02 | Cochlear Limited | Method of forming a non-linear path of an electrically conducting wire |
US11058871B2 (en) | 2003-12-08 | 2021-07-13 | Cochlear Limited | Manufacturing an electrode array for a stimulating medical device |
US20100326723A1 (en) * | 2007-07-17 | 2010-12-30 | Cochlear Limited | Electrically insulative structure having holes for feedthroughs |
US8672667B2 (en) | 2007-07-17 | 2014-03-18 | Cochlear Limited | Electrically insulative structure having holes for feedthroughs |
Also Published As
Publication number | Publication date |
---|---|
US8508334B2 (en) | 2013-08-13 |
ES2599323T3 (en) | 2017-02-01 |
CN1618081A (en) | 2005-05-18 |
CN100483456C (en) | 2009-04-29 |
CN101561861B (en) | 2012-05-09 |
US20080297315A1 (en) | 2008-12-04 |
CN101561861A (en) | 2009-10-21 |
EP1483733A1 (en) | 2004-12-08 |
JP2005515563A (en) | 2005-05-26 |
FR2834857A1 (en) | 2003-07-18 |
AU2003215700A1 (en) | 2003-07-30 |
WO2003060820A1 (en) | 2003-07-24 |
EP1483733B1 (en) | 2016-05-18 |
FR2834857B1 (en) | 2004-06-25 |
US20050068155A1 (en) | 2005-03-31 |
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